OFFSET
1,1
COMMENTS
Column 1 of A237548
LINKS
R. H. Hardin, Table of n, a(n) for n = 1..23
EXAMPLE
Some solutions for n=2
..0..0..2....1..2..0....0..2..2....1..1..1....0..0..2....0..0..1....1..0..0
..1..2..1....0..1..2....2..2..1....0..1..1....1..1..1....0..2..1....0..1..2
..0..1..1....0..2..1....0..2..2....0..1..2....1..2..1....2..0..1....2..1..1
..2..1..1....2..1..2....1..2..2....0..2..1....0..2..1....1..2..1....2..1..2
CROSSREFS
KEYWORD
nonn
AUTHOR
R. H. Hardin, Feb 09 2014
STATUS
approved